<template>
  <header class="header">
    <h1>todos</h1>
    <input id="toggle-all" class="toggle-all" type="checkbox" v-model="quan">
    <label for="toggle-all"></label>
    <input class="new-todo" placeholder="输入任务名称-回车确认" autofocus v-model="name" @keyup.enter="addFN" />
  </header>
</template>

<script>
  export default {
    props: ['arr'],
    data() {
      return {
        name: '',
      }
    },
    methods: {
      addFN() {
        this.$emit('adds', this.name);
        this.name = '';
      }
    },
    computed: {
      quan: {
        set(val) {
          this.arr.forEach(obj => obj.isDone = val)
        },
        get() {
          return this.arr.every(val => val.isDone)
        }
      }
    }
  }
</script>